Home / 1,419,019.60-2,128,529.40-520,162.60

Finding the Fourth Proportional to 1,419,019.60, 2,128,529.40 and 520,162.60

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Solution

The fourth proportional to 1,419,019.60, 2,128,529.40 and 520,162.60 is: 780,243.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,019.60 : 2,128,529.40 = 520,162.60 : x
  2. Step 2: Convert to fraction form
    1,419,019.60/2,128,529.40 = 520,162.60/x
  3. Step 3: Cross multiply
    1,419,019.60x = 2,128,529.40 × 520,162.60
  4. Step 4: Simplify right side
    1,419,019.60x = 1,107,181,386,880.44
  5. Step 5: Solve for x
    x = 1,107,181,386,880.44/1,419,019.60
  6. Step 6: Final answer
    x = 780,243.90

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.